diff --git a/FileHasher.Library/FileHasher.Library.csproj b/FileHasher.Library/FileHasher.Library.csproj
index c6ca06b..1de4a5e 100644
--- a/FileHasher.Library/FileHasher.Library.csproj
+++ b/FileHasher.Library/FileHasher.Library.csproj
@@ -5,7 +5,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="MessagePack" Version="2.4.35" />
+    <PackageReference Include="MessagePack" Version="2.5.187" />
     <PackageReference Include="MessagePackAnalyzer" Version="2.4.35">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>